Security readout for executives and security teams
Plain-English summary
CVE-2026-1335 is a high-severity file parsing flaw in SOLIDWORKS eDrawings. If a user opens a malicious EPRT file, an attacker could run code on that user’s workstation. This is most relevant to engineering, design, manufacturing, and supplier-facing teams that receive CAD-related files from outside parties.
Executive priority
Treat this as a near-term endpoint risk for engineering and design environments. Prioritize inventory and vendor-guided remediation where external CAD files are common. Business urgency is high when teams exchange EPRT files with third parties, but current sources do not show active exploitation.
Technical view
The issue is an out-of-bounds write, CWE-787, in the EPRT file reading procedure of Dassault Systèmes SOLIDWORKS eDrawings. CVSS 3.1 is 7.8 with local attack vector and required user interaction. The source bundle lists Release SOLIDWORKS Desktop 2025 SP0 and 2026 SP0 as affected, while the description says 2025 through 2026.
Likely exposure
Exposure is likely on endpoints where SOLIDWORKS eDrawings is installed and users open EPRT files, especially files received by email, portals, suppliers, or customers. The attack requires user interaction and is not described as remotely exploitable without opening a crafted file.
Exploitation context
No source provided indicates active exploitation, and the CVE is not listed as CISA KEV in the bundle. The practical risk is social engineering or workflow-based delivery of a crafted EPRT file to a user who routinely reviews CAD files.
Researcher notes
Evidence is limited to the CVE record and Dassault advisory reference. The affected-version wording is not fully consistent between the description and affected list. Do not assume broader product impact or specific patch availability without checking the vendor advisory directly.
Mitigation direction
- Check Dassault Systèmes’ advisory for official updates or remediation guidance.
- Inventory endpoints running SOLIDWORKS eDrawings or SOLIDWORKS Desktop 2025 or 2026.
- Prioritize systems handling external EPRT files or supplier-submitted CAD content.
- Warn users not to open unexpected or untrusted EPRT files.
- Use email and file-transfer controls to scrutinize EPRT attachments from external sources.
Validation and detection
- Confirm installed SOLIDWORKS eDrawings and Desktop release and service pack levels.
- Compare installed versions against Dassault Systèmes’ CVE-2026-1335 advisory.
- Identify users or groups that open EPRT files from external parties.
- Review endpoint detections for suspicious child processes after eDrawings activity.
- Track vendor advisory changes for clarification on affected service packs and fixes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-787: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-1335 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.3ds.com/trust-center/security/security-advisories/cve-2026-1335CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.